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参数资料
| 型号： | LTC4058XEDD-4.2#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 6/12页 |
| 文件大小： | 0K |
| 描述： | IC BATT CHARGER LI-ION REG 8DFN |
| 标准包装： | 2,500 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion） |
| 电源电压： | 4.25 V ~ 6.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-WFDFN 裸露焊盘 |
| 供应商设备封装： | 8-DFN-EP（3x3） |
| 包装： | 带卷 (TR) |
LTC4058-4.2/LTC4058X-4.2
PI FU CTIO S
the voltage on this pin can be used to measure the charge
current using the following formula:
I BAT = (V PROG /R PROG ) ? 1000
This pin is clamped to approximately 2.4V. Driving this pin
to voltages beyond the clamp voltage can draw currents as
high as 1.5mA.
V CC (Pin 6): Positive Input Supply Voltage. Provides
power to the charger. V CC can range from 4.25V to 6.5V.
This pin should be bypassed with at least a 1 μ F capacitor.
ACPR (Pin 7): Power Supply Status Open-Drain Output.
When V CC is greater than the undervoltage lockout thresh-
old and at least 100mV above V BSENSE , the ACPR pin is
pulled to ground; otherwise, the pin is high impedance.
EN (Pin 8): Enable Input . A logic high on the EN pin will put
the LTC4058 into shutdown mode where the battery drain
current is reduced to less than 2 μ A and the supply current
is reduced to less than 50 μ A. A logic low or floating the EN
pin (allowing an internal 2M ? pull-down resistor to pull
this pin low) enables charging.
When V CC is within 100mV of the BSENSE pin voltage, the
LTC4058 enters shutdown mode dropping the battery
drain current to less than 2 μ A.
BLOCK DIAGRA
6
V CC
120 ° C
T A
T DIE
1 ×
1000 ×
BAT
2
MA
5 μ A
BSENSE
1
R1
7
3
ACPR
CHRG
CA
VA
+
–
R2
–
+
REF
1.21V
R3
1V
CHARGE ACPR
R4
LOGIC
TERM
EN
SHDN
C1
+
–
0.1V
R5
8
EN
TRICKLE CHARGE
DISABLED ON THE
R EN
–
C2
+
LTC4058X
2.9V
TO BAT
5
PROG
GND
4, 9
R PROG
405842 BD
sn405842 405842fs
6
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| LTC4059 | 制造商:LINEAR 制造商全称:LINEAR 功能描述:Standalone 250mA Li-Ion Battery Charger in 2 × 2 DFN |
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| LTC4059AEDC#TR | 功能描述:IC BATT CHARGER LI-ION REG 6DFN RoHS:否 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件 |
| LTC4059AEDC#TRM | 功能描述:IC BATT CHARGER LI-ION REG 6DFN RoHS:否 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件 |
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